The two masses in the figure are released from rest. After the 3.0-kg mass has fallen 1.5 m, it is moving with a speed of 3.8 m/s. What is the change in mechanical energy done on the system during this time interval by the frictional force on the 2.0 kg mass? 
Definitions:
William Tuke
A pioneering figure in the reform of mental health care in the 18th century, known for promoting humane treatment.
Dorothea Dix
An American activist who substantially helped improve the treatment of the mentally ill in the 19th century through her tireless advocacy and establishment of the first generation of American mental asylums.
State Mental Hospitals
Publicly funded institutions dedicated to treating individuals with mental health disorders, offering various levels of care.
Legacy
Something transmitted by or received from an ancestor or predecessor, often referring to cultural heritage, property, or practices handed down through generations.
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